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in_merge_bases(): use paint_down_to_common()

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With paint_down_to_common(), we can tell if "commit" is reachable
from "reference" by simply looking at its object flag, instead of
iterating over the merge bases.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2012-08-30 15:04:13 -07:00
parent da1f515641
commit 6440fdbab4
1 changed files with 7 additions and 10 deletions
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17
commit.c
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@ -786,20 +786,17 @@ int is_descendant_of(struct commit *commit, struct commit_list *with_commit)
*/
int in_merge_bases(struct commit *commit, struct commit *reference)
{
struct commit_list *bases, *b;
struct commit_list *bases;
int ret = 0;
bases = merge_bases_many(commit, 1, &reference);
if (parse_commit(commit) || parse_commit(reference))
return ret;
bases = paint_down_to_common(commit, 1, &reference);
if (commit->object.flags & PARENT2)
ret = 1;
clear_commit_marks(commit, all_flags);
clear_commit_marks(reference, all_flags);
for (b = bases; b; b = b->next) {
if (!hashcmp(commit->object.sha1, b->item->object.sha1)) {
ret = 1;
break;
}
}
free_commit_list(bases);
return ret;
}